HP Redemption Cell
Not giving the wi-fi music device

I have purchased a Compaq Presario notebook (C772TU) on 17 May, For the purchase of the model between 1st May to 31st May there is a Free Promotional Offer HP Digital Music Receiver, on sending the claim documents. Eventhough I have send all the required documents along with DD of rs. 500 within the stipulated time, bt no gift has been sent to me yet. Even no e-mail has been sent to me.

My Redemption code is IZEGPVC7OF

Kindly take this matter with the proper authority